Thanks for that Fintan.
It seems to be getting sorted. I have finally managed to get a hold of the actual buider (rather than the site foreman) and he has agreed that the workmanship was crap and they would tear it down and redo it. This only came about after a bit of a row.
So waiting back and holding firm has paid dividends. He did mention that some people had signed off without any snag list! When you hear stuff like this, is it any wonder we struggle to get satisfaction from builders.
@extopia - I had supplied my solicitor with enough ammo to show that I was in compliance - so that she could fend off the 'order to complete'. In the meantime I sorted stuff out with the builder directly as outlined above. I havnt spoken to the solicitor since - but it looks like stuff will be sorted before christmas anyways. Meeting the builder later this week on site. Fingers crossed as now that the issue with the wall is sorted, I want to complete the purchase more than the solicitors/builders.